null	null	19	1
null	c	4	1
null	d	10	1
-1	e	15	1
0	a	1	1
1	a	5	1
2	b	9	1
4	c	6	1
5	a	10	1
6	c	8	1
9	b	13	1
19	null	65536	1
8	c	12	2
10	a	11	2
10	d	11	2
11	a	14	2
11	d	2147483647	2
12	c	13	2
13	b	17	2
65536	null	1000000	2
13	c	13	3
14	a	11111	3
2147483647	d	2147483647	3